US6448323B1 - Film coatings and film coating compositions based on polyvinyl alcohol - Google Patents
Film coatings and film coating compositions based on polyvinyl alcohol Download PDFInfo
- Publication number
- US6448323B1 US6448323B1 US09/351,076 US35107699A US6448323B1 US 6448323 B1 US6448323 B1 US 6448323B1 US 35107699 A US35107699 A US 35107699A US 6448323 B1 US6448323 B1 US 6448323B1
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- United States
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- dispersion
- aqueous coating
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 75
- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 75
- 239000007888 film coating Substances 0.000 title claims abstract description 65
- 238000009501 film coating Methods 0.000 title claims abstract description 65
- 239000000203 mixture Substances 0.000 title claims abstract description 49
- 238000000576 coating method Methods 0.000 claims abstract description 105
- 239000011248 coating agent Substances 0.000 claims abstract description 104
- 239000006185 dispersion Substances 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000454 talc Substances 0.000 claims abstract description 45
- 229910052623 talc Inorganic materials 0.000 claims abstract description 45
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims abstract description 44
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 44
- 235000010445 lecithin Nutrition 0.000 claims abstract description 44
- 239000000787 lecithin Substances 0.000 claims abstract description 44
- 229940067606 lecithin Drugs 0.000 claims abstract description 44
- 239000000049 pigment Substances 0.000 claims abstract description 44
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 43
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 43
- 239000003605 opacifier Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 24
- 235000011187 glycerol Nutrition 0.000 claims abstract description 22
- 239000004014 plasticizer Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 235000013305 food Nutrition 0.000 claims abstract description 12
- 235000009508 confectionery Nutrition 0.000 claims abstract description 10
- 235000015872 dietary supplement Nutrition 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000004615 ingredient Substances 0.000 claims description 42
- 239000008199 coating composition Substances 0.000 claims description 32
- 230000007062 hydrolysis Effects 0.000 claims description 13
- 238000006460 hydrolysis reaction Methods 0.000 claims description 13
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 13
- 239000011118 polyvinyl acetate Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 3
- 229920002560 Polyethylene Glycol 3000 Polymers 0.000 description 15
- 239000007921 spray Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 239000002198 insoluble material Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000005923 long-lasting effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- LOUPRKONTZGTKE-LHHVKLHASA-N quinidine Chemical compound C([C@H]([C@H](C1)C=C)C2)C[N@@]1[C@H]2[C@@H](O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-LHHVKLHASA-N 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical group CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 description 1
- LOUPRKONTZGTKE-UHFFFAOYSA-N cinchonine Natural products C1C(C(C2)C=C)CCN2C1C(O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940051204 fd&c red 40 lake Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 235000012738 indigotine Nutrition 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000006186 oral dosage form Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 239000000902 placebo Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229960001404 quinidine Drugs 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- GSFNWGKBQZDYCL-UHFFFAOYSA-N sodium 2-(3-hydroxy-5-sulfo-1H-indol-2-yl)-3-oxoindole-5-sulfonic acid Chemical compound [Na+].Oc1c([nH]c2ccc(cc12)S(O)(=O)=O)C1=Nc2ccc(cc2C1=O)S(O)(=O)=O GSFNWGKBQZDYCL-UHFFFAOYSA-N 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 239000008347 soybean phospholipid Substances 0.000 description 1
- 235000012751 sunset yellow FCF Nutrition 0.000 description 1
- 239000004173 sunset yellow FCF Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
Definitions
- This invention relates to the field of aqueous film coating of substrates like pharmaceutical tablets, nutritional supplements, food, confectionery forms, agricultural seeds, and the like, and is specifically concerned with coating substrates with a coating based on polyvinyl alcohol.
- OPADRY AMB coating compositions produce film coatings having excellent moisture barrier properties.
- the spray rate for coating pharmaceutical tablets in an O'Hara Lab Coat I coater fitted with a 24′′ pan containing 12 kilograms of tablets using a aqueous film coating solution/dispersion formed from an OPADRY AMB coating composition is slow (about 25 to 30 grams/minute compared to other types of coating systems which can be sprayed at 50 to 70 grams/min).
- a slow spray rate is a disadvantage, such a disadvantage is outweighed by the moisture barrier properties obtained from the OPADRY AMB coating composition, for the special application when a moisture barrier film coating is required to coat a pharmaceutical substrate.
- a slow spray rate is not acceptable due to the additional processing costs that are associated with a slow spray rate.
- Polyethylene glycol is a known plasticizer used in film coatings to reduce the glass transition temperature of the film forming polymer and to make the polymer less brittle. Inclusion of polyethylene glycol in a coating system would be expected to result in making the coating system more tacky, as predicted by the Williams-Landel-Ferry equation. Accordingly, adding polyethylene glycol to PVA, which is already very tacky, would be expected to result in making the coating system even more tacky, thereby making the problem of tackiness of PVA even worse.
- polyethylene glycol would be expected to compromise the moisture barrier properties of a PVA film coating.
- Insoluble materials such as pigments, glidants, and flow aids commonly are used in film coating compositions.
- pigment is used to provide a color to the film coating and talc is used as a glidant and a filler to reduce the percentage of the amount of other more costly components in the film coating composition.
- Use of insoluble materials in the film coating composition may not be haphazard since, as is well recognized by those skilled in the art, adding insoluble materials to a film coating composition typically decreases the tensile strength of the film coating, which means a weaker film is obtained as the amount of insoluble materials in the film coating increases.
- Keith et al. U.S. Pat. No. 4,432,965 discloses a sustained release oral dosage form comprising a tablet core containing a pharmaceutically effective amount of quinidine which is coated with a sustained released polymeric coating which contains about 5 to about 20% by weight polyethylene glycol and from about 80 to 95% by weight polyvinyl alcohol. Keith et al. U.S. Pat. No. 4,432,965 discloses that their sustained release coating of PVA and polyethylene glycol dissolves slowly in gastric and intestinal fluids.
- Another object of the invention is to provide a film coating based on polyvinyl alcohol which may be sprayed onto substrates such as pharmaceutical tablets, nutritional supplements, food, confectionery forms, agricultural seeds, and the like at a coating solution spray rate of about 55 to 60 grams per minute.
- Another object of the invention is to provide a film coating that is fast dissolving.
- the inventive dry film coating composition for use in coating pharmaceutical tablet, nutritional supplement, food, confectionery forms, agricultural seed, and the like comprises 1) polyvinyl alcohol, 2) a plasticizer such as polyethylene glycol or glycerin, and 3) talc.
- the inventive dry film coating composition includes one or more of the following components: a pigment/opacifier and lecithin.
- a method of coating substrates comprises the steps of mixing 1) polyvinyl alcohol, 2) a plasticizer such as polyethylene glycol or glycerin, and 3) talc into water to form an aqueous coating dispersion, applying an effective amount of the coating dispersion onto the substrates to form a film coating on the substrates, and drying the film coating on the substrates.
- a plasticizer such as polyethylene glycol or glycerin
- talc talc into water to form an aqueous coating dispersion
- one or more of the following components is/are mixed into water with the polyvinyl alcohol, the plasticizer, and the talc to form the inventive coating dispersion: a pigment/opacifier and lecithin.
- the invention also includes the aqueous coating dispersion, the coated substrates, such as coated pharmaceutical tablets, coated nutritional supplements, coated food products, coated confectionery forms, coated agricultural seeds, and the like, and the method of making the dry film coating compositions and the method of making the coating dispersion of the invention.
- Polyvinyl alcohol is the film former of the coating.
- the grades of polyvinyl alcohol found useful under the invention correspond to polyvinyl alcohol that comprises partially hydrolyzed polyvinyl acetate which has a percentage of hydrolysis greater than about 86.5 mol. % and preferably in a range of about 86.5 to 89.0 mol. %.
- the polyvinyl alcohol is micronized to facilitate dissolving the polyvinyl alcohol into the water when forming the aqueous coating solution.
- the particle size of the micronized polyvinyl alcohol falls in the following quanities and mesh sizes: 47.8% is greater than 200 microns; 28.7% is between 200 and 145 microns; 22.9% is between 145 and 100 microns; 0.5% is between 100 and 80 microns; and 0.1% is between 80 microns.
- the polyethylene glycol is a plasticizer for making the coating of the invention non-brittle and non-cracking.
- Polyethylene glycol having a nominal molecular weight of greater than 1000 has been found useful, and polyethylene glycol having a molecular weight of 3000 is preferred.
- Glycerin another plasticizer, may be substituted for the polyethylene glycol.
- glycerin when used in the inventive coating composition, reduces the tackiness of the resultant film coating by surprisingly acting as a mild detackifier.
- the talc is a glidant, and the talc helps improve the smoothness of the final coating since the talc facilitates the tumbling of tablets over one another during coating.
- the talc in an amount between about 9% and about 45%, and preferably between about 9% and 20%, and more preferably at about 10%, by weight of the coating composition produces an increase in the tensile strength in the film coating, resulting in a stronger film. This is highly unexpected since it would be expected that the tensile strength of a film coating would decrease as the amount of an insoluble component, such as talc, increases in the film coating composition.
- the pigment/opacifier may be any food approved colors, opacifiers, or dyes.
- the pigment/opacifier may be aluminum lakes, iron oxides, titanium dioxide, or natural colors. Examples of such pigments/opacifiers are listed in Colorcon U.S. Pat. No. 4,543,570 issued Sep. 24, 1985 which is incorporated herein by reference.
- the lecithin is a detackifier. We have found: 1) the lecithin also acts as a surfactant by helping the wetting of the components of the aqueous coating dispersion; the lecithin helps solvate the polyvinyl alcohol; and the lecithin has a plasticizing effect by locking moisture in the coating so the coating stays flexible and does not become brittle.
- dry components of the following formulation are blended together in a dry powder mill, such as a PK blender, for 25 minutes or until an homogenous mixture is achieved, resulting in one formulation of the inventive dry film coating composition.
- a dry powder mill such as a PK blender
- the dry film coating composition of the invention may be granulated using a planetary mixer, such as a Hobart planetary mixer. After the dry film coating composition is loaded into the mixer and the mixer is switched on, sufficient water is slowly added until the composition forms slightly adherent granules. These granules are then passed through a 1-2 mm screen and then dried in a 30° C. oven until the moisture content is below 5%. The composition is then sieved again through a 1-2 mm screen and then is ready for use in a nondusting, granular form. If not optionally granulated, the composition may be milled such as in a hammer mill (Apex Machinery, Dartford, England), for example. Other methods of granulation which may be used are spray granulation and roller compaction.
- a planetary mixer such as a Hobart planetary mixer.
- 300 grams of the resulting film coating composition is dispersed into 1200 grams of distilled water to form an inventive coating dispersion (20% solids), and 1500 grams of this dispersion is sprayed onto 10 kilograms of tablets using a coater to form the inventive coating on the tablets having a theoretical weight gain of 3%.
- the tablets are rotated in the coater at a rotation speed of 12-14 rpm.
- Hot air at 60° C. to 70° C. is used to evaporate the water in the sprayed coating dispersion and to maintain the tablets at 38° C.-42° C.
- the spraying rate of coating dispersion during coating is 60 grams per minute.
- the tablets Upon completion of the coating process, the tablets show a smooth surface with excellent logo definition.
- the film coating on the tablets possesses an excellent long-lasting shinny gloss, minimal tackiness, good film adhesion, and good tensile strength (about 10-15 MPa).
- each formulation is mixed together, formed into a coating solution, and applied to tablets, as in Example 1, to obtain film coatings possessing a smooth surface, an excellent long-lasting shinny gloss, minimal tackiness, good film adhesion, and good tensile strength typically between about 10 MPa and about 16 MPa.
- the dry ingredients of the above formulation are loaded into a suitably-sized food processor and blended vigorously for 5 minutes until homogeneous. After 5 minutes, the liquid portion of the formulation (glycerin, a plasticizer), is added to the processor and blending continues for an additional 3 minutes to create a dry coating composition of the invention. 90 grams of this formulation is then dispersed into 360 grams of purified water and stirred for 45 minutes to form an aqueous coating dispersion of 20.0% solids that is ready for spray coating.
- a 3.0 kilogram charge of mixed tablets consisting of 2.0 kg of 3 ⁇ 8′′ standard concave placebos and 1.0 kg of 5 grain aspirin cores of similar diameter is loaded into a 15′′ O'Hara Labcoat I coating pan with 4 mixing baffles and 6 anti-slide bars.
- the aqueous coating dispersion is sprayed onto the tablet bed using 1 Spraying System Gun, 1 ⁇ 8 VAU SS and a Masterflex digital console peristaltic pump with 1 7518-02 pumphead.
- the atomizing air is 25 psi
- pattern air is 35 psi
- inlet air temperature is 70° C.
- outlet air is 48° C.
- the tablet bed temperature remains at 41° C.
- the pan speed is 16 rpm
- the coating liquid feed rate is 20 g/min (which is equivalent to 50-60 grams/minute in the O'Hara Lab Coat I coater fitted with a 24′′ pan)
- the total coating time is 22 minutes.
- a theoretical 3.0% dry coating weight gain is applied and the film coating on the tablets possesses an excellent long-lasting shiny gloss, minimal tackiness, good adhesion, and good tensile strength (about 10-15 MPa).
- inventive aqueous coating dispersion it also may be prepared by adding the individual components of the inventive coating composition directly into water and then mixing to form the coating dispersion.
- the coating dispersion is prepared at a solids level of between 10% and 30%.
- coating solution spray rates of about 60 grams/minute (in a 24′′ pan containing 12 kilograms of tablets) may be obtained using the aqueous coating dispersions of the invention. This is unexpected because, to those skilled in the art, it is known that very tacky polymers require slow spray rates due to their tackiness. Accordingly, PVA, being a very tacky polymer, would be expected to require slow spray rates. For instance, coating solutions formed from Colorcon's PVA-based OPADRY AMB coating compositions require a slow spray rate (e.g., 25-30 grams/minute in a 24′′ pan containing 12 kilograms of tablets) due to the tackiness of PVA in the coating solution.
- a slow spray rate e.g., 25-30 grams/minute in a 24′′ pan containing 12 kilograms of tablets
- talc which is an insoluble material in the inventive coating composition used as a glidant and a filler, in the inventive film coating composition in an amount between about 9% and about 45%, and preferably between about 9% and 20%, and more preferably at about 10%, by weight of the coating composition and in the inventive film coating dispersion in an amount between about 9% and about 45%, and preferably between about 9% and 20%, and more preferably about 10%, by weight of the non-water ingredients of the film coating dispersion produces an increase in the tensile strength of the film coating, rather than decreasing the tensile strength. Accordingly, in accordance with the invention, talc may be used in amounts that reduce the amount of PVA in the film coating, thereby reducing the cost of the film
- the inventive coating has good moisture barrier properties. This, too, is surprising and unexpected because polyethylene glycol and similar plasticizers are hydrophilic and would be expected to reduce the moisture barrier properties of PVA. While the water vapor transmission rate for a film coating made from an OPADRY film coating composition comprising hydroxypropyl methylcellulose and polyethylene glycol is about 40, and the water vapor transmission rate for a film coating made from an OPADRY AMB coating composition not having any polyethyelene glycol in it is about 6, the water vapor transmission rate for a film coating made in accordance with the invention is about 10.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- General Preparation And Processing Of Foods (AREA)
- Confectionery (AREA)
- Paints Or Removers (AREA)
Priority Applications (22)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/351,076 US6448323B1 (en) | 1999-07-09 | 1999-07-09 | Film coatings and film coating compositions based on polyvinyl alcohol |
IL14742500A IL147425A0 (en) | 1999-07-09 | 2000-06-30 | Film coatings and film coating compositions based on polyvinyl alcohol |
KR1020027000241A KR100616732B1 (ko) | 1999-07-09 | 2000-06-30 | 폴리비닐 알코올 기제의 피막 코팅재 및 피막 코팅 조성물 |
CZ20020066A CZ303912B6 (cs) | 1999-07-09 | 2000-06-30 | Suchá filmotvorná potahová kompozice, kapalná disperze a zpusob potahování substrátu |
CNB008100950A CN1206267C (zh) | 1999-07-09 | 2000-06-30 | 基于聚乙烯醇的薄膜包衣和薄膜包衣组合物 |
HU0202260A HU226963B1 (en) | 1999-07-09 | 2000-06-30 | Dry film coating composition and method of coating subsrates using it |
ES00960118T ES2225209T3 (es) | 1999-07-09 | 2000-06-30 | Peliculas de recubrimiento y composiciones basadas en poli(alcohol vinilico) para peliculas de recubrimiento. |
DE60012754T DE60012754T2 (de) | 1999-07-09 | 2000-06-30 | Filmbeschichtungen und filmbeschichtungszusammensetzungen basierend auf polyvinylalkohol |
PCT/US2000/040287 WO2001004195A1 (en) | 1999-07-09 | 2000-06-30 | Film coatings and film coating compositions based on polyvinyl alcohol |
AT00960118T ATE272674T1 (de) | 1999-07-09 | 2000-06-30 | Filmbeschichtungen und filmbeschichtungszusammensetzungen basierend auf polyvinylalkohol |
CA002374629A CA2374629C (en) | 1999-07-09 | 2000-06-30 | Film coatings and film coating compositions based on polyvinyl alcohol |
BRPI0012263-7A BR0012263B1 (pt) | 1999-07-09 | 2000-06-30 | composição de pelìcula de revestimento, seca, para uso em revestimento de tabletes farmacêuticos, suplementos nutricionais, alimentos, formas de confeitaria, sementes agrìcolas, e, similares; método de revestimento de substratos como estes, com uma pelìcula de revestimento. |
AU71328/00A AU766046B2 (en) | 1999-07-09 | 2000-06-30 | Film coatings and film coating compositions based on polyvinyl alcohol |
EP00960118A EP1208143B1 (en) | 1999-07-09 | 2000-06-30 | Film coatings and film coating compositions based on polyvinyl alcohol |
JP2001509406A JP2003509339A (ja) | 1999-07-09 | 2000-06-30 | フィルムコーティングおよびポリビニルアルコールをベースとするフィルムコーティング組成物 |
EG20000866A EG24436A (en) | 1999-07-09 | 2000-07-02 | Film coatings and film coating compositions based on polyvinyl alcohol |
ARP000103405A AR025542A1 (es) | 1999-07-09 | 2000-07-04 | Composicion de revestimiento de pelicula seca para uso en el revestimiento de tabletas farmaceuticas, suplementos nutricionales, alimentos, formas de confituras, semillas agricolas y similares, dispersion de revestimiento de pelicula liquida formada a partir de dicha composicion de revestimiento de |
CO00051041A CO5190675A1 (es) | 1999-07-09 | 2000-07-07 | Revestimientos de pelicula y composiciones para revestimien- tos de peliculas basadas en alcohol polivinilico |
TW089113503A TWI288162B (en) | 1999-07-09 | 2000-07-07 | Film coatings and film coating compositions based on polyvinyl alcohol |
IL147425A IL147425A (en) | 1999-07-09 | 2001-12-31 | Film coatings and film coating compositions based on polyvinyl alcohol |
ZA200200104A ZA200200104B (en) | 1999-07-09 | 2002-01-04 | Film coatings and film coating compositions based on polyvinyl alcohol. |
JP2011118152A JP2011225576A (ja) | 1999-07-09 | 2011-05-26 | フィルムコーティングおよびポリビニルアルコールをベースとするフィルムコーティング組成物 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/351,076 US6448323B1 (en) | 1999-07-09 | 1999-07-09 | Film coatings and film coating compositions based on polyvinyl alcohol |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020103285A1 US20020103285A1 (en) | 2002-08-01 |
US6448323B1 true US6448323B1 (en) | 2002-09-10 |
Family
ID=23379470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/351,076 Expired - Lifetime US6448323B1 (en) | 1999-07-09 | 1999-07-09 | Film coatings and film coating compositions based on polyvinyl alcohol |
Country Status (20)
Country | Link |
---|---|
US (1) | US6448323B1 (cs) |
EP (1) | EP1208143B1 (cs) |
JP (2) | JP2003509339A (cs) |
KR (1) | KR100616732B1 (cs) |
CN (1) | CN1206267C (cs) |
AR (1) | AR025542A1 (cs) |
AT (1) | ATE272674T1 (cs) |
AU (1) | AU766046B2 (cs) |
BR (1) | BR0012263B1 (cs) |
CA (1) | CA2374629C (cs) |
CO (1) | CO5190675A1 (cs) |
CZ (1) | CZ303912B6 (cs) |
DE (1) | DE60012754T2 (cs) |
EG (1) | EG24436A (cs) |
ES (1) | ES2225209T3 (cs) |
HU (1) | HU226963B1 (cs) |
IL (2) | IL147425A0 (cs) |
TW (1) | TWI288162B (cs) |
WO (1) | WO2001004195A1 (cs) |
ZA (1) | ZA200200104B (cs) |
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IL147425A (en) | 2006-08-01 |
CN1360612A (zh) | 2002-07-24 |
CZ303912B6 (cs) | 2013-06-26 |
AU7132800A (en) | 2001-01-30 |
EP1208143A1 (en) | 2002-05-29 |
JP2003509339A (ja) | 2003-03-11 |
WO2001004195A8 (en) | 2001-10-04 |
CN1206267C (zh) | 2005-06-15 |
BR0012263B1 (pt) | 2010-11-16 |
DE60012754T2 (de) | 2005-09-01 |
IL147425A0 (en) | 2002-08-14 |
EP1208143A4 (en) | 2002-10-30 |
HUP0202260A2 (en) | 2002-11-28 |
TWI288162B (en) | 2007-10-11 |
JP2011225576A (ja) | 2011-11-10 |
DE60012754D1 (de) | 2004-09-09 |
AU766046B2 (en) | 2003-10-09 |
ZA200200104B (en) | 2003-06-25 |
CZ200266A3 (cs) | 2002-07-17 |
EP1208143B1 (en) | 2004-08-04 |
BR0012263A (pt) | 2002-03-12 |
EG24436A (en) | 2009-06-25 |
ATE272674T1 (de) | 2004-08-15 |
HU226963B1 (en) | 2010-03-29 |
US20020103285A1 (en) | 2002-08-01 |
WO2001004195A1 (en) | 2001-01-18 |
AR025542A1 (es) | 2002-12-04 |
CA2374629A1 (en) | 2001-01-18 |
KR100616732B1 (ko) | 2006-08-28 |
ES2225209T3 (es) | 2005-03-16 |
KR20020029073A (ko) | 2002-04-17 |
CA2374629C (en) | 2009-05-19 |
CO5190675A1 (es) | 2002-08-29 |
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